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7.4.2. External aborts handling

The L1 data cache handles two types of external abort depending on the attributes of the memory region of the access:

  • All Strongly-ordered accesses use the synchronous abort mechanism.

  • All Cacheable, Device, and Normal Non-cacheable memory requests use the asynchronous abort mechanism. For example, an abort returned on a read miss, issuing a linefill, is flagged as asynchronous.